Variabilitatea și heritabilitatea caracterelor de productivitate la grâul comun
DOI:
https://doi.org/10.52673/18570461.24.1-72.04Cuvinte cheie:
grâu comun, caractere de productivitate, corelații, sursă de variaţie, heritabilitate, progres geneticRezumat
Pe durata anilor 2020–2023 au fost cercetate productivitatea spicului și caracterele asociate acesteia la 45 de genotipuri de colecție de grâu comun de toamnă. După cum s-a constatat, condițiile climatice ale anului au avut un rol decisiv pentru nivelul și dependențele corelaționale ale parametrilor aflați în studiu. Au fost calculați varianța genotipică, varianța fenotipică, coeficientul de heritabilitate în sens larg, coeficienții genetici și fenotipici de variație, progresul genetic pentru caracterele cercetate. Prin analiză clusteriană au fost identificate 17 genotipuri de grâu cu productivitate înaltă a spicului (2,68-3,44 g) pe durata a patru ani de studiu care ar putea servi ca genitori valoroși la crearea noilor genotipuri.
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Copyright (c) 2024 Galina Lupascu, Svetlana Gavzer, Nicolae Cristea (Author)

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